1. Comparative Genome and Evolution Analyses of an Endangered Stony Coral Species Dendrophyllia cribrosa Near Dokdo Islands in the East Sea.
- Author
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Kim, Jungeun, Choi, Jae Pil, Kim, Min Sun, Jo, Yejin, Min, Won Gi, Woo, Seonock, Yum, Seungshic, and Bhak, Jong
- Subjects
SCLERACTINIA ,GENOMES ,CARBONIC anhydrase ,SPECIES ,CARBOHYDRATE metabolism - Abstract
Stony corals often harbor intracellular photosynthetic dinoflagellate algae that receive dissolved inorganic nutrients. However, Dendrophyllia cribrosa is a nonsymbiotic stony coral distributed in the western Pacific. We assembled a chromosome-level D. cribrosa genome using PacBio and Hi-C technologies. The final assembly was 625 Mb, distributed on 14 chromosomes, and contained 30,493 protein-coding genes. The Benchmarking Universal Single-Copy Orthologs analysis revealed a percentage of 96.8 of the metazoan genome. A comparative phylogenetic analysis revealed that D. cribrosa , which lacks symbionts, evolved to acquire cellular energy by expanding genes related to acyl-CoA metabolism and carbohydrate transporters. This species also has expanded immune-related genes involved in the receptor protein tyrosine kinase signaling pathway. In addition, we observed a specific expansion of calcification genes, such as coral acid-rich proteins and carbonic anhydrase , in D. cribrosa. This high-quality reference genome and comparative analysis provides insights into the ecology and evolution of nonsymbiotic stony corals. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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